<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>jQuery左右箭头控制图片轮播代码 - 16素材网</title>
<script type="text/javascript" src="js/jquery.js"></script>
<style type="text/css">
body,ul,li{padding: 0; margin: 0;}
ul,li{list-style: none;}
body{font-size:12px;}

#demo1{ 
    position: relative;    
    margin: 50px auto;
    width: 700px;     
    border:1px solid #ccc;
}
#demo1 .img_list{overflow: hidden; position: relative; height: 260px;}
/* 根据图片的张数来设定ul的宽度 */
.img_list ul{ width: 3500px; position: absolute; height: 260px; left: 0px;}
.img_list li{ float: left; width: 700px;}
.img_list img{ margin: 1px; width: 698px; height: 258px;}

/* 图片对应的按钮样式 */
.btn_list ul{ position: absolute; right: 20px; bottom: 35px; }
.btn_list li{ float: left; margin-right: 10px; color: #999; border: 1px solid #ccc; }
.btn_list li:hover,.btn_list li.on{ cursor: pointer; border: 1px solid #E204A4;}
.btn_list li img{ width: 30px; height: 15px; display: block;}
/* 左右点击的按钮样式 */
#demo1 .toLeft,#demo1 .toRight{
    display: none;
    position: absolute;
    width: 20px;
    height: 30px;    
    top: 110px;    
    background: url(image/zbbg_24.png) no-repeat 0 -150px;
}

/* 图片对应的说明*/
.img_intro{
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 25px;
}
.img_intro .img_intro_bg,.img_intro .text{
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
}
.img_intro .img_intro_bg{
    background: #000;    
    opacity: .3;
    z-index: 999;
}
.img_intro .text{
    padding: 5px 10px;
    z-index: 1000;
    color: #999;
}
#demo1 .toLeft{
    left: -40px;
}
#demo1 .toRight{
    right: -40px;
    background-position: -50px -150px;
}
</style>
</head>  
<body>   

<div id="demo1">
	<div class="img_list">
		<ul>
			<li><a href="http://www.16sucai.com/" target="_blank"><img src="image/gsh_banner1.jpg" alt="寻花故事"></a></li>
			<li><a href="http://www.16sucai.com/" target="_blank"><img src="image/gsh_banner2.jpg" alt="金瓶梅"></a></li>
			<li><a href="http://www.16sucai.com/" target="_blank"><img src="image/gsh_banner3.jpg" alt="视频听书"></a></li>
			<li><a href="http://www.16sucai.com/" target="_blank"><img src="image/gsh_banner4.jpg" alt="盗墓故事"></a></li>
		</ul>
	</div>
	<div class="btn_list">
		<ul>
		</ul>
	</div>
	<div class="img_intro">
		<div class="text"><a href="#" target="_blank"></a></div>
		<div class="img_intro_bg"></div>            
	</div>
	<a href="#" id="toLeft" class="link toLeft"></a>
	<a href="#" id="toRight" class="link toRight"></a>
</div>

<script type="text/javascript">
var index = 0;
var timer = 0;
var ulist = $('.img_list ul');
var blist = $('.btn_list ul');
var list = ulist.find('li');
var llength = list.length;//li的个数，用来做边缘判断
var lwidth = $(list[0]).width();//每个li的长度，ul每次移动的距离
var uwidth = llength * lwidth;//ul的总宽度

function init(){
	//生成按钮(可以隐藏)
	addBtn(list);
	//显示隐藏左右点击开关
	$('.link').css('display', 'block');
	$('.link').bind('click', function(event) {
		var elm = $(event.target);
		doMove(elm.attr('id'));
		return false;
	});

	//初始化描述
	var text = ulist.find('li').eq(0).find('img').attr('alt');
	var link = ulist.find('li').eq(0).find('a').attr('href');
	$('.img_intro .text a').text(text);
	$('.img_intro .text a').attr('href',link);
	auto();
}

function auto(){
	//定时器
	timer = setInterval("doMove('toRight')",3000);

	$('.img_list li, .btn_list li').hover(function() {
		clearInterval(timer);
	}, function() {
		timer = setInterval("doMove('toRight')",3000);
	});
}

function changeBtn(i){
	blist.find('li').eq(i).addClass('on').siblings().removeClass('on');
	var text = ulist.find('li').eq(i).find('img').attr('alt');
	var link = ulist.find('li').eq(i).find('a').attr('href');
	$('.img_intro .text a').text(text);
	$('.img_intro .text a').attr('href',link);
}

function addBtn (list){
	for (var i = 0; i < list.length; i++) {
		var imgsrc = $(list[i]).find('img').attr('src');            
		var listCon = '<li><img src="'+imgsrc+'""></li>';         
		$(listCon).appendTo(blist);
		//隐藏button中的数字
		//list.css('text-indent', '10000px');
	};
	blist.find('li').first().addClass('on');
	blist.find('li').click(function(event) {
		var _index = $(this).index();            
		doMove(_index);
	});
}

function doMove(direction){
	//向右按钮
	if (direction =="toRight") {
		index++;
		if ( index< llength) {
			uwidth = lwidth *index;
			ulist.css('left',-uwidth);
			//ulist.animate({left: -uwidth}, 1000);

		}else{
			ulist.css('left','0px');
			index = 0;
		}; 
	//向左按钮           
	}else if(direction =="toLeft"){
		index--;
		if ( index < 0) {
			index = llength - 1;                
		}
		uwidth = lwidth *index;
		ulist.css('left',-uwidth);
		//ulist.animate({left: -uwidth}, "slow");    
	//点击数字跳转  
	}else{
		index = direction;
		uwidth = lwidth *index;
		ulist.css('left',-uwidth);
	};
	changeBtn(index);
}
init();
</script>

<div style="text-align:center;margin:50px 0; font:normal 14px/24px 'MicroSoft YaHei';">
<p>适用浏览器：IE8、360、FireFox、Chrome、Safari、Opera、傲游、搜狗、世界之窗.</p>
<p>来源：<a href="http://www.16sucai.com/" target="_blank">16素材网</a></p>
</div>
</body>
</html>